Electric coin-controlled lock.



G. G. F. BOSWELL.

ELECTRIC com CONTROLLED LOCK.

APPLICATION FILED MAR. 2|. I913.

Patented July 27, 191.5.

3 SHEETS-SHEET l- Figl WITNESSES: o INVENTOR George'G. F. Boswell WM J17a 7 dawn/Cy,

G. G. F. BOSWELL.

ELECTRIC COIN CONTROLLED LOCK. APPLICATION FILED MAR. 2!. 1913.

5 1 mm H m ZW mm m d5 m3 n w 0w P Fig.5.

'INI/ENTOR WITNESSES.

COLUMBIA PLANOGRAPH C0" WASHINGTON. I) C G. G. F. BOSWELL.

ELECTRIC COIN CONTROLLED LOCK.

APPLICATION men MAR. 21. 1913.

Patented July 27, 1915.

3 SHEETS-SHEET 3- I George 'G-EBoan/e. I

WTTED @TATF@ PATENT UFFT@E.

GEORGE G. F. BOSWELL, OF INDIANAPOLIS, INDIANA.

ELECTRIC COIN-CONTROLLED LOCK.

Application filed March 21, 1913.

T 0 all whom it may concern:

Be it known that I, GEORGE G. F. Bos- WELL, a citizen of the UnitedStates, and a resident of Indianapolis, county of Marion, and State ofIndiana, have invented a cer tain new and useful ElectricCoin-Controlled Lock; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, in which like letters refer to like parts.

The object of this invention is to provide an improved coin controlledlock employing electricity for operating the lock, the parts beingarranged so that the coin will close the circuit.

The chief feature of the invention consists in providing, as statedabove, means actuated by a current for withdrawing the bolt of the lookwhen the circuit is closed by the coin.

Along with the foregoing a further feature of the invention is theprovision of means associated with the coin chute for moving the coininto a circuit closing position and for discharging the coin.

The nature of the invention will be understood from the accompanyingdrawings and the following description and claims.

In the drawings, Figure 1 is an elevation of a portion of the front edgeof a door with the lock secured thereon. Fig. 2 is an elevation of oneside of a portion of the door frame, door and lock. Fig. 3 is anelevation of the look as viewed in Fig. 2 but with the casing removedand the door omitted and parts of the lock in idle position. Fig. 4 isan elevation of the left-hand side of Fig. 3 with the coin holder in itsinoperative position, and the coin leaving the holder. Fig. 5 is asection on the line 5-5 of Fig. 3 with the coin therein and in circuitclosing position. Fig. 6 is a cross section on the line 66 of Fig. 3.Fig. 7 is a plan view of what is shown in the upper part of Fig. 3 withthe wires removed and showing the shutter closing the coin chute. Fig. 8is a cross section on the line 88 of Fig. 3. Fig. 9 is the same as Fig.3 with some parts, in cluding the coin chute, omitted. Fig. 10 is a rearelevation of the insulated plate on which the lock is mounted, partsextending through and mounted on the rear side thereof.

The drawings employed herein to illustrate the general nature of theinvention as Specification of Letters Patent.

Patented July 27, 1915.

Serial No. 755,948.

well as the details thereof, present a door 10 with the lock casing 11secured thereto as usual and with an inner knob 12 and an outer knob 13.The outer knob 13 is on a stub shaft 14 which is idle, and the detailsof which are not shown. The inner knob shaft has a sleeve 15, which issecured on the squared end of the knob shaft 16 to be seen in Fig. 5.The inner knob and its shaft are to release the look from the inside.The lock is released by electrical means, and, therefore, the outer knobis used only to pull the door open.

Upon the outer surface of thedoor a plate 17 of insulating material issecured by screws 18. The locking bolt has an outwardly extendingbeveled end 20secured to a vertical plate 21, and also two parallel bars22, which extend inwardly from the plate 21, as shown in Figs. 3, 6 and9, and at their rear ends have an integral cross plate 23. These parts,20, 21, 22 and 23 are shown integral and may be considered the bolt. Thebolt is thrown outward or locked bythe spring 245, see Fig. 6, which isa spiral spring surrounding a rod 25, which projects loosely through therear plate 23 of the bolt construction, and its other end is secured inan arm 26 extending from a plate 27 which is secured to the insulatedbase 17. The outward movement of the bolt is stopped by a flange28extending from said plate 27 and engaging the plate 21 of the boltconstruction, as shown in Fig. 6.

For withdrawing the bolt when one is on the inner side of the door, theinner knob 12 is turned and that causes the knob shaft 16 to turn theoppositely extending arms 29, as shown in Fig. 9, from a positioncrosswise of the bolt construction, as shown in Fig. 5, to a positionalmost longitudinal thereof, as shown in Fig. 9, and when turned to aposition shown in Fig. 9, it bears against the plate 23 on the inner endof the bolt construction and forces the bolt inward. The arm 29 isdouble in order to enable the bolt to be withdrawn when the inner knobis turned in either direction.

Coming now to the electrical apparatus for withdrawing the bolt of thelook when a person is on the outside of the door, there are a pair ofelectromagnets 30 secured with in casings 31, which project throughopenings 32 in the insulated base plate, as shown in Fig. 10. Thesemagnets are energized by current coming in through wires 33 andconnected to some source of electricity and leads from saidelectromagnets to a binding post 39 and terminal 40, There is a terminal41 opposite the terminal 40 connected to the binding post 42 and fromthat binding post a wire 43 leads to the binding post 36.

The terminals 40 and 41, as shown in Figs.

3 and 4, are metalplates secured at one end i to the binding post andbent or curved somewhat toward each other so as to hold a coin 44,vwhich may lodge between them, and thus the coin closes the circuit andenables the current to energize the magnets.

The energization of the magnets causes the withdrawal of the cores 45thereof, whichextend inward from the plate 21, and thus the boltconstruction is withdrawn from the looking to the unlocking position.The coin is inserted in the coin chute 47, see Figs. 3 and 5, which issecured at its upper end to a plate 48 which has a flange 49 fas tenedto the insulated base plate by a bolt 50. The lower end of the chute issecured to asimilar plate 51 having a flange 52 secured by a bolt 53.The chute 47 consists of a main back plate with the sides folded over sothat there is a slot 54, which has, however, no particular function, andupon the outer'surface of the lower end of the chute a spring plate 55is secured, which projects below the chute with its lower end bentinward to bear upon a coin holder 56.

g This coin holder is made of insulating material and at its upper endis hinged at 57 to a bent rod58 secured toand extending from the coinchute. The spring 55 tends to. force the coin holder rearward to the Iposition shownin Fig. 5, and when the coin isinserted inthe chute theholder 56 will guide it in between the terminals 40 and 41, and theyprevent the coin from escaping.

V ,In order todischarge the coin it is neces sary to move theholder 56from the position shown in Fig. 5, to the position shown inFig.

4, so that the. coin will disengage the terminal plates 40 and 41, andthen drop by I inwhich the binding posts 39 and 42 are mounted, YA plate65 of insulating materialjextend rea ward from t e b o k .4,

and a plate 66 extends from the other end of the block 64, and the block64 is secured to the base plate 17. The frame 61 is forced outward bythe spring 67, which bears between the rear end plate 63 of the frame,and a bracket 68, which extends from the door. The spring 67 surrounds arod 69, which extends from the bracket 68 loosely through the plate 63.The frame 61 is held inward by the plate 70, which is secured to thedoor frame 71, see Fig. 2. Said plate 70 has a socket in it to receivethe end 20 of the bolt, as indicated by dotted lines in Fig. 2.Therefore, when the door is closed, as shown in Fig. 2, the frame 61 isforced inward to the position shown in Figs. 5 and 9, and thus the plate60 releases the coin holder 56, so that the spring 55 forces the coinholder in between the terminals 40 and 41. Then the lock is in conditionto receive the coin and be operated through its instrumentality. As soonas the lock is operated, the door is opened and the spring 67 forces theframe 61 outward, which causes the cam plate 60 to move the coin holder56 away from the terminals 40 and 41, and then the coin drops into arecess not shown. The person then goes through the door and closes it,and when it is closed, the sliding frame 61 and the bolt resume theirnormal positions, as shown in Fig. 2.

After the person has gone through the door and is inside, it isnecessary that the coin chute be closed, so that other persons on theoutside cannot, by use of the coin, operate the lock. Therefore, whenthe bolt is withdrawn by the current passing through the coin, asheretofore explained, the electrical mechanism at the same time moves ashutter on the upper side of the lock from the position shown in Fig. 5to the position shown in Figs. 4 and 7. The means for operating theshutter is as follows: The shutter is secured on a shaft 76 mounted atits ends in bearing plates 77 and 78 extending from the base plate 17.Said shafthas arms 79, which are pivoted to cores 80 projecting intoends of the electromagnets opposite the ends in to which the other cores45 project. Therefore, when the current energizes the magnet, thesolenoids 80 will cause the shutter 75 to move to a closing position.Therefore, as long as a person is inside of the door, no

person on the outside can operate the lock.

When a person on the inside desires to come out, he operates the innerknob 12 in either direction, and that not only withdraws the bolt of thelook, but also returns the shutter to its open position, as shown inFigs. 3 and 5. This is effected by an arm 81 extending from the shaft76, see Fig. 6, and a loop 82 which extends from said arm through theside plates of the frame 83, which slides on the plates 22 ofthe boltconstruction loosely about and under a guide formed of a bolt 84 fromthe base plate 17 and a thumb nut 85 thereon, and said frame,

83 has a cross plate 86, similar to the plate 23, and in position to beengaged by the double arms 29. Therefore, when the knob shaft 16 isoperated, the double arms 29 will simultaneously push against the plate23 to withdraw the bolt of the lock, and push against the plate 86 andthrough the loop 82 and shaft 76 and return the shutter to its openposition. lVhen the person thus goes out through the door and closes thedoor, the lock is again in its normal posi tion, as shown in Fig. 2.

I claim as my invention:

1. A coin controlled lock including a bolt, electrical means forcontrolling the operation of said bolt, a circuit for energizing saidelectrical means with terminals in posi tion to be closed by a coin, acoin chute for receiving a coin and having a movable portion for holdingthe coin between the termimils, and means for moving said coin holdingportion of the chute so as to release the coin.

2. A coin controlled lock including a bolt, electrical means forcontrolling the operation of said bolt, a circuit for energizing saidelectrical means with terminals in position to be closed by a coin, acoin chute for receiving a coin and having a movable portion for holdingthe coin between the terminals, and means operated by closing the dooron which the lock is secured for moving the coin holding portion of thechute so as to discharge the coin.

3. A coin controlled lock including a bolt, electrical means forcontrolling the opera tion of said bolt, a circuit for energizing saidelectrical means with terminals in position to be closed by a coin, acoin chute for receiving a coin and having a movable portion for holdingthe coin between the terminals, and a slidable frame on said lockadapted to be actuated by the door casing when the door is closed formoving said coin holding portion of the coin chute into position todischarge the coin.

4c- A coin controlled lock including a bolt, electrical means forcontrolling the operation of said bolt, a circuit for energizing saidelectrical means with terminals in posi tion to be closed by a coin, acoin chute for receiving a coin and having a movable portion for holdingthe coin between the terminals, a sliding frame with a beveled outer endand adapted when pushed inward to move the coin holding portion of saidchute into position to discharge the coin, and a plate adapted to beplaced on the door casing for engaging the beveled end of said framewhen the door is closed for forcing the frame inward.

5. A coin controlled lock including a bolt,

electrical. means for controlling the operation of the bolt, a circuitfor energizing electrical means for controlling the operation of thebolt, a circuit for energizing said electrical means having twoterminals con sisting of oppositely located plates inclined toward eachother so that a coin may lodge between them and close the circuit, acoin chute for receiving the coin and having a movable portion forholding the coin while it is between said terminals, and means operatedby the closing of the door for moving the coin holding portion of thechute so as to disengage the coin from said terminals and permit it toescape.

7. A coin controlled lock including a bolt, electrical means forcontrolling the operation of the bolt, a circuit for energizing saidelectrical means having two terminals consisting of oppositely locatedplates inclined toward each other so that a coin may lodge between themand close the circuit, a coin chute including a fixed portion forreceiving the coin and a movable portion at the lower end of the fixedportion for holding the coin between said terminals, a spring forforcing said coin holding portion of the chute to hold the coin betweenthe terminals, and means for moving aid coin holding portion of thechute outward to permit the coin to escape.

8. A coin controlled lock including a bolt, electrical means forcontrolling the operation of the bolt, a circuit for energizing saidelectrical means having two terminals consisting of oppositely locatedplates inclined toward each other so that a coin may lodge between themand close the circuit, a coin chute including a fixed portion forreceiving the coin and a movable portion at the lower end of the fixedportion for holding the coin between said terminals, a spring forforcing said coin holding portion of the chute to hold the coin betweenthe terminals, and means operated by the closing of the door for movingsaid coin holding portion of the chute outward to permit the coin toescape.

9. A coin controlled lock including a bolt, electrical means forcontrolling the operation of the bolt, a circuit for energizing saidelectrical means having two terminals consisting of oppositely locatedplates inclined toward each other so that a coin may lodge between themand close the circuit, a coin v chute. including a fixed portion forreceiving the coin and a movable portion at the lower end of the fixedportion for holding the coin between said terminals, a spring forforcing said coin holding portion of the chute to hold the coin betweenthe terminals, and a sliding frame provided with a cam plate in positionto force said coin holding portion of the chute outward to permit theescape ofthe coin when said frame is moved outward, a spring for forcingsaid frame outward, and means on the door casing for forcing saidframe'inward when the door is closed.

10. A coin controlled lock including a bolt, electrical means forcontrolling the operation of the bolt, a circuit for energizing saidelectrical means having two terminals consisting of oppositely locatedplates inclined toward each other so that a coin may lodge between themand close the circuit, a coin chute including a fixed portion forreceiving the coin and a movable portion at the lower end of the fixedportion for holding the coin between said terminals, a spring forforcing said coin holding portion of the chute to hold the coin betweenthe terminals, a block formed of insulating material in which saidterminals are mounted, a skeleton frame surrounding and guidable by saidinsulating block, a cam plate on said frame in position to move the coinholding portion of the coin-chute outward to permit the escape of thecoin when said frame is moved outward, a spring for forcing said frameoutward, and a plate on the door casusage ing for forcing said frameinward when the door is closed.

11. A coin controlled lock including a spring-actuated bolt withlaterally extending plates, a pair of electromagnets, a core extendingfrom said, plates into one end of each magnet, a circuit for saidmagnets having terminals adapted to be bridged by a coin, a coin chutefor conveying the coin to said terminals, a shutter for closing saidchute, a rock shaft on which said shutter is mounted and having armsthereon, and cores extending from said arms into the other ends of saidmagnets.

12. A coin controlled lock including a bolt, electrical means forcontrolling the operation of the bolt, a circuit for energizing saidelectricaltmeans having two terminals consisting of oppositely locatedplates inclined toward each other so that a coin may lodge between. themand close the circuit, a coin chute including a fixed portion forreceiving the coin and a movable portion at the lower end of the fixedportion for holding the coin between said terminals, means for forcingsaid coin-holding portion of the chue to hold the coin between theterminals, and means for moving said coin holding portion of the chuteoutward to permit the coin to. escape.

In witness whereof, I have hereunto affixed my signature in the presenceof the witnesses herein named.

GEORGE G. F. BOSWELL. Witnesses:

G. H. BOINK, J. H. WELLS.

{topics of this patent may be glitained for five gents each, byaddressing the Commissioner of Patents.

" a Washin n 1?- 0- 4

